000
00277nam a2200109Ia 4500
008
151015s9999 xx 000 0 und d
020
_a
9251050171
245
_a
Enhancing or restoring the productivity of natural resource
260
_c
2003
300
_a
vi 155p.
942
_2
udc
999
_c
25343
_d
25343